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Regional Air Quality
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Background


Federal Clean Air Standards

The Clean Air Act (CAA), last amended in 1990, established a framework for air quality planning throughout the United States. The CAA requires the United States Environmental Protection Agency (EPA) to set national air quality standards to limit exposure to pollutants that can harm public health and our environment. The air in the metropolitan Washington region meets the federal air quality standards for five of the six regulated pollutants. However, on some days in the summer, the concentration of ground-level ozone in our region’s air exceeds the federal one-hour ozone standard and our region is classified as an ozone nonattainment area. To understand more about ozone and its effects visits the Health Department Web page.

State Implementation Plan (SIP)

Under the Clean Air Act Amendments of 1990 (CAAA), each state submits a State Implementation Plan (SIP) as the primary tool for determining how and when a region will attain air quality standards. During the SIP process, a region identifies emission sources that contribute to nonattainment, then determines the amount of emissions that must be reduced to reach attainment and selects emission reduction measures/controls most appropriate for the area. Air quality nonattainment regions that are multi-jurisdictional must develop coordinated SIPs for submission by their respective states.

In Metropolitan Washington, the governors of Maryland and Virginia and the mayor of Washington, DC have certified the Metropolitan Washington Air Quality Committee (MWAQC) as the authority to develop a coordinated SIP for the region. MWAQC membership includes representatives from the states and the District, as well as nearly 20 cities and counties in Virginia and Maryland. The states and the District then individually submit the same coordinated SIP to the EPA for approval.

The Current Status of the Metropolitan Washington Region's SIP Process

In 1992, the EPA classified the Metropolitan Washington region as “serious” for non-attainment of the federal one-hour ground-level ozone standard in accordance with the CAAA. The Act required the states of Maryland and Virginia and the District of Columbia to prepare a coordinated SIP for submission to the EPA explaining how the region would reduce emissions that contribute to the formation of ground-level ozone by 15 percent from 1990-1996 and by three percent per year thereafter until the region reached attainment of the federal standard (This demonstration is commonly referred to as a rate-of-progress (ROP)).

The Washington region did not meet the attainment deadline of November 1999. After legal action by the Sierra Club, in January 2003 the EPA reclassified the Washington region to “severe” nonattainment. Under the new classification, the CAAA requires the region to develop a SIP that meets more stringent requirements and to attain the federal standard by November 2005. In addition, the region must adopt a contingency plan for the 1999 ROP demonstration, submit an updated attainment demonstration that reflects revised motor vehicle emissions budgets, demonstrate a three percent per year ROP from 1999-2002 and from 2002-2005, adopt contingency measures in case of failure to achieve ROP or attainment as required, and submit an analysis of Reasonably Available Control Measures (RACM). A RACM analysis ensures that the region is implementing all reasonable measures to achieve attainment of the federal standard on the earliest date possible. The SIP also establishes emissions budgets for the mobile, point, area and non-road sectors. In addition, state and local governments, as applicable, must commit to the control and contingency measures before MWAQC can adopt the final SIP.

Beginning in the fall of 2002, MWAQC identified both control and contingency measures to fulfill all planning requirements of the CAAA. MWAQC’s schedule was developed to ensure that the region’s federal transportation program authority would not lapse.

In 1991, the Intermodal Surface Transportation Efficiency Act (ISTEA) incorporated the CAAA requirements into transportation policy. As a result, the Transportation Planning Board (TPB), as the local Metropolitan Planning Organization, is required to perform an air quality analysis on the annual Transportation Improvement Program (TIP) (short range transportation plan) and the fiscally Constrained Long Range (transportation) Plan (CLRP) to ensure that the region stays within the mobile sector budgets established in the region’s SIP (this analysis is commonly referred to as air quality conformity). The U.S. Department of Transportation requires each region to submit a TIP and CLRP as a prerequisite to receiving federal transportation funds.

In May 2003, MWAQC released a draft Severe Area SIP for the Washington region for public comment. The draft SIP underwent public hearings in July 2003. During the public comment period, EPA stated that the contingency measures MWAQC had identified relied too heavily on Memorandums of Understanding (MOUs) from local governments and private industry, and were not sufficiently enforceable. EPA indicated that approvable contingency measures should take the form of regulations or legislation to ensure additional emissions reductions will occur if needed.

MWAQC adopted a revised SIP without contingency measures on August 13, 2003. (Submittal of contingency measures is not required for EPA to find the mobile emissions budget adequate, and transportation planning timelines require an approved mobile budget earlier than the CAAA requires the complete SIP.) The EPA received SIP submissions in early September and began the 30-day public comment period on the SIP on September 10, 2003.
While MWAQC was developing a new SIP, the TPB, Virginia, Maryland, the District of Columbia and the other local jurisdictions, including Fairfax County, prepared a new TIP and CLRP. The TIP and CLRP contain a list of proposed projects to be built between now and 2030. A draft list of projects was approved by the TPB for modeling purposes on May 21, 2003. This draft inventory of projects was used to determine the emissions that will be generated by the mobile sector in several survey years (including 2005, 2015, 2025). This analysis concluded that the transportation project inventory contained in the draft TIP and CLRP will generate a level of emissions below the mobile budget MWAQC set forward in the SIP.

In December 2003, the EPA determined that the mobile emissions budgets in the SIP of September 2003 are adequate. TPB submitted the new TIP and CLRP to the Federal Highway Administration (FHWA) and the Federal Transit Administration (FTA) in mid December 2003. The FHWA and the FTA approved this TIP and CLRP on February 23, 2004.

MWAQC completed, and the states and District submitted, the revised SIP the last week of February 2004. MWAQC anticipates that the Severe Area SIP will be deemed complete, and eventually approved. The challenges of meeting the new eight-hour federal standard for ozone and the new particulate matter (PM2.5) standard, which take effect in 2004, represent possibly an order of magnitude more difficulty compared to that of the current one-hour ozone standard. County staff who worked with MWAQC on the regional planning effort are concerned that this next phase will require assistance from the federal government.

County Efforts to Improve Regional Air Quality

Fairfax County participates actively in the regional air quality planning efforts that are facilitated through Metropolitan Washington Council of Governments. These efforts include the work of the Metropolitan Washington Air Quality Committee and the Transportation Planning Board. In addition, the county is committed to taking a leadership role in promulgating air quality best practices that affect every part of the county government to improve air quality consistent with regional efforts.

Examples of such actions include: purchasing 41 lower-emissions vehicles in the county's vehicle fleet replacement; continuing to promote commuting alternatives to the single occupant automobile (e.g., teleworking, transit, ridesharing, biking, and walking); and evaluating restrictions on certain types of activities, where appropriate, to ensure that the region will meet all applicable federal air quality standards. Specific examples of these actions are described in greater detail in Chapter 5 of the Findings Document.

County Commitments to the Regional Air Quality Plan (SIP)

Prior to adopting the SIP, MWAQC asked each local jurisdiction to consider committing to emission reduction measures that could be included in the final severe area SIP as control measures. County staff reviewed a variety of measures and the county executive recommended that the Board of Supervisors approve a letter indicating Fairfax County’s commitment to implementing the control measures listed below for inclusion in the Washington region severe area SIP. It should be noted that the Board of Supervisors had previously supported the implementation of some of these measures.

  • Gas can replacements: Portable gas cans account for a significant amount of emissions escaping into the air every day. By using newer gas cans with features such as shut off valves, harmful gasoline fumes can be reduced by 75 percent. Fairfax County currently owns an estimated 300 gas cans that can be replaced.

  • Use of low Volatile Organic Compound (VOC) paints: Besides reducing emissions of ozone-forming compounds, low-VOC paints improve indoor air quality by reducing eye or respiratory irritation caused by exposure to paint fumes.

  • Diesel retrofits: The Board of Supervisors has already approved reprogramming of the electronic controls on certain school buses and installation of diesel oxidation catalysts on school buses and other diesel powered county equipment. The board approved $2 million as part of the FY 2005 Carryover Budget to begin the diesel retrofit program. In addition, the board made available funds in the amount of $1.5 million for the retrofit of the FAIRFAX CONNECTOR (public transit) buses with the catalyzed diesel particulate filters.

  • Episodic ban on the use of gasoline powered lawn and garden equipment: county and contractor mowing and trimming operations will be deferred on Ozone Action days (Code Red Days), except on specialized turf areas at the golf courses and athletic field complexes. The county will continue a replacement policy to purchase low-emissions lawn and garden equipment that reduce ozone precursor emissions.

  • Episodic ban on the use of VOC-containing paints: Deferring the use of VOC-containing paints and coatings on Ozone Action days (Code Red Days) will reduce VOC emissions (an ozone precursor) and overall ground-level ozone formation on Code Red Days.

  • Episodic ban on the refueling of non-essential gasoline-powered cars and equipment: The Board of Supervisors already encourages county agencies to defer the refueling of their non-essential gasoline-powered equipment and vehicles on a Code Red Day. In order to better monitor this policy, the county executive is recommending that a report of any refueling that did occur on a Code Red Day be given to agency directors the next day. This would enable follow-up action without restricting vital functions that require refueling.

  • Episodic ban on the use of VOC-containing pesticides: Both the active and inert ingredients of many pesticides are reactive in the formation of ozone. Under this policy, county and contractor applications of pesticides would be deferred on Code Red Ozone Action days.

  • Telework on Code Red days: The board already supports this measure, and the county executive already encourages teleworking on Code Red Days by encouraging approved teleworking employees to telework even if they were not scheduled for that day. Currently, more than 520 county employees telework two to four days per month. An expansion plan is underway to raise that number to 1,000 by 2005. Telework expansion reflects the Fairfax County Board of Supervisors' support of the regional goal set by the Metropolitan Washington Council of Governments -- to reach a level of 20 percent of the eligible workforce teleworking one day per week or more by 2005.

    On Thursday, October 23, 2003, the county sponsored a Telework Expo in the Government Center Atrium and Forum. The expo was a way to inform more employees about the benefits and possibilities of telework. In addition, the expo contained a compilation of information and activities about the county's telework effort. The expo also recognized the departments and employees who have contributed to the county's telework effort.

  • Participation as a Clean Air Partner: Fairfax County government has been a member of Clean Air (ENDZONE) Partners since 1998, and has been proactive in efforts to inform county employees and residents about air quality programs and ways to reduce air pollution.

    The county has included information about air quality issues on its Web site. The county has a notification program that involves the posting of Ozone Action Day forecasts on Fairfax County Government Cable Television Channel 16, and the county Web site, as well as sending e-mail notifications to all county employees. These messages include appropriate actions to take to reduce contributions to ozone formation.

    Some actions currently practiced by Fairfax County government when a Code Red Day is forecast include the refueling of vehicles after sunset; the restriction on the use of non-essential motorized operating equipment; encouraging employees to telework, and teleconference to participate in meetings off site; and the offering of free trips on the Fairfax Connector and on Metrobus, in cooperation with other local jurisdictions in the region.

    On Tuesday, Nov. 4, at the University Conference Center and Inn at the University of Maryland's College Park campus, Fairfax County was given an honorable mention by Clean Air Partners in the category of "Outstanding Ozone Action Days Program." The county was recognized for its efforts in establishing voluntary actions to reduce ground-level ozone through an Ozone Action Days plan, its efforts to encourage and facilitate public awareness of air quality issues, and its efforts to encourage employees to take personal voluntary actions.

  • Best Practices in Pesticide Application: The Park Authority fully supports this measure and has already implemented an integrated pest management (IPM) program at the golf facilities and athletic field complexes. The Park Authority’s approach to select pesticide applications is one of prevention rather than curative. This approach greatly reduces the amount of product (VOC emissions) required to keep turf healthy and allows the IPM program to be more effective.

  • Alternative Fueled Vehicle Purchases: The county already favors purchase of hybrid-drive vehicles when appropriate for replacement of vehicles being retired. In addition to the 41 hybrid vehicles that have already been purchased, it is anticipated that the county will purchase an additional 16 hybrid vehicles by May 2005.

 

 

 

   

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Last Modified: Wednesday, February 20, 2004